Acta Chimica Sinica ›› 2007, Vol. 65 ›› Issue (14): 1325-1332. Previous Articles     Next Articles

Original Articles

杂多蓝在可见光照射下对TiO2的光敏作用研究

付宁1,2, 吕功煊*,1   

  1. (1中国科学院兰州化学物理研究所 羰基合成与选择氧化国家重点实验室 兰州 730000)
    (2中国科学院研究生院 北京 100049)
  • 收稿日期:2006-07-28 修回日期:2007-01-25 出版日期:2007-07-28 发布日期:2007-07-28
  • 通讯作者: 吕功煊

Photosensitization of Heteropoly Blue for TiO2 under Visible Light Irradiation

FU Ning1,2; LÜ Gong-Xuan*,1   

  1. (1 State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000)
    (2 Graduate University of Chinese Academy of Sciences, Beijing 100049)
  • Received:2006-07-28 Revised:2007-01-25 Online:2007-07-28 Published:2007-07-28
  • Contact: LÜ Gong-Xuan

Heteropoly acid such as phosphotungstic acid or silicotungstic acid was photoreduced to heteropoly blue in glycerol aqueous solution. Sensitization of Pt/TiO2 by the heteropoly blue was found to be active for hydrogen generation under visible light irradiation. The apparent quantum yield of 3.4% for the photocatalytic hydrogen generation has been achieved with glycerol as an electron donor under 650~700 nm visible light.

Key words: heteropoly bule, visible light, photosensitization, titania